/export/starexec/sandbox2/solver/bin/starexec_run_default /export/starexec/sandbox2/benchmark/theBenchmark.c /export/starexec/sandbox2/output/output_files -------------------------------------------------------------------------------- YES Ultimate: Cannot open display: This is Ultimate 0.1.25-34f2e62 [2020-07-01 10:55:21,639 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-01 10:55:21,642 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-01 10:55:21,653 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-01 10:55:21,653 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-01 10:55:21,654 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-01 10:55:21,655 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-01 10:55:21,657 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-01 10:55:21,658 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-01 10:55:21,659 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-01 10:55:21,660 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-01 10:55:21,661 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-01 10:55:21,661 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-01 10:55:21,662 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-01 10:55:21,663 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-01 10:55:21,664 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-01 10:55:21,665 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-01 10:55:21,666 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-01 10:55:21,667 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-01 10:55:21,669 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-01 10:55:21,670 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-01 10:55:21,671 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-01 10:55:21,672 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-01 10:55:21,673 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-01 10:55:21,675 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-01 10:55:21,676 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-01 10:55:21,676 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-01 10:55:21,677 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-01 10:55:21,677 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-01 10:55:21,678 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-01 10:55:21,678 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-01 10:55:21,679 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-01 10:55:21,679 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-01 10:55:21,680 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-01 10:55:21,681 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-01 10:55:21,681 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-01 10:55:21,682 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-01 10:55:21,682 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-01 10:55:21,682 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-01 10:55:21,683 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-01 10:55:21,684 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-01 10:55:21,684 INFO L101 SettingsManager]: Beginning loading settings from /export/starexec/sandbox2/solver/bin/./../termcomp2017.epf [2020-07-01 10:55:21,698 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-01 10:55:21,699 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-01 10:55:21,700 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-01 10:55:21,700 INFO L138 SettingsManager]: * Rewrite not-equals=true [2020-07-01 10:55:21,700 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-01 10:55:21,700 INFO L138 SettingsManager]: * Minimize states using LBE with the strategy=SINGLE [2020-07-01 10:55:21,700 INFO L138 SettingsManager]: * Use SBE=true [2020-07-01 10:55:21,701 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-07-01 10:55:21,701 INFO L138 SettingsManager]: * Use old map elimination=false [2020-07-01 10:55:21,701 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2020-07-01 10:55:21,701 INFO L138 SettingsManager]: * Buchi interpolant automaton construction strategy=DANDELION [2020-07-01 10:55:21,701 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2020-07-01 10:55:21,701 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-07-01 10:55:21,702 INFO L138 SettingsManager]: * Construct termination proof for TermComp=true [2020-07-01 10:55:21,702 INFO L138 SettingsManager]: * Command for external solver (GNTA synthesis)=z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 10:55:21,702 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-01 10:55:21,702 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-07-01 10:55:21,702 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-01 10:55:21,703 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-01 10:55:21,703 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-07-01 10:55:21,703 INFO L138 SettingsManager]: * How to treat unsigned ints differently from normal ones=IGNORE [2020-07-01 10:55:21,703 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-01 10:55:21,703 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-01 10:55:21,703 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-07-01 10:55:21,704 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:5000 [2020-07-01 10:55:21,704 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-01 10:55:21,704 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-01 10:55:21,704 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-01 10:55:21,704 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-01 10:55:21,868 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-01 10:55:21,881 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-01 10:55:21,885 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-01 10:55:21,886 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-01 10:55:21,886 INFO L275 PluginConnector]: CDTParser initialized [2020-07-01 10:55:21,887 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /export/starexec/sandbox2/benchmark/theBenchmark.c [2020-07-01 10:55:21,957 INFO L220 CDTParser]: Created temporary CDT project at /export/starexec/sandbox2/tmp/BenchExec_run_8Op7GL/tmp/b74c53d7b1dc4da7b6a3ed040a99bf36/FLAGf6ed5aba9 [2020-07-01 10:55:22,286 INFO L306 CDTParser]: Found 1 translation units. [2020-07-01 10:55:22,287 INFO L160 CDTParser]: Scanning /export/starexec/sandbox2/benchmark/theBenchmark.c [2020-07-01 10:55:22,293 INFO L349 CDTParser]: About to delete temporary CDT project at /export/starexec/sandbox2/tmp/BenchExec_run_8Op7GL/tmp/b74c53d7b1dc4da7b6a3ed040a99bf36/FLAGf6ed5aba9 [2020-07-01 10:55:22,704 INFO L357 CDTParser]: Successfully deleted /export/starexec/sandbox2/tmp/BenchExec_run_8Op7GL/tmp/b74c53d7b1dc4da7b6a3ed040a99bf36 [2020-07-01 10:55:22,716 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-01 10:55:22,718 INFO L131 ToolchainWalker]: Walking toolchain with 7 elements. [2020-07-01 10:55:22,719 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-01 10:55:22,719 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-01 10:55:22,722 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-01 10:55:22,723 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.07 10:55:22" (1/1) ... [2020-07-01 10:55:22,727 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7f0da096 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 10:55:22, skipping insertion in model container [2020-07-01 10:55:22,727 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.07 10:55:22" (1/1) ... [2020-07-01 10:55:22,735 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-01 10:55:22,753 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-01 10:55:22,981 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-01 10:55:22,985 INFO L203 MainTranslator]: Completed pre-run [2020-07-01 10:55:23,003 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-01 10:55:23,018 INFO L208 MainTranslator]: Completed translation [2020-07-01 10:55:23,018 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 10:55:23 WrapperNode [2020-07-01 10:55:23,018 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-01 10:55:23,019 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-07-01 10:55:23,019 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-07-01 10:55:23,020 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-07-01 10:55:23,030 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 10:55:23" (1/1) ... [2020-07-01 10:55:23,035 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 10:55:23" (1/1) ... [2020-07-01 10:55:23,056 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-07-01 10:55:23,056 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-01 10:55:23,056 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-01 10:55:23,056 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-01 10:55:23,066 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 10:55:23" (1/1) ... [2020-07-01 10:55:23,067 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 10:55:23" (1/1) ... [2020-07-01 10:55:23,067 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 10:55:23" (1/1) ... [2020-07-01 10:55:23,067 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 10:55:23" (1/1) ... [2020-07-01 10:55:23,070 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 10:55:23" (1/1) ... [2020-07-01 10:55:23,074 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 10:55:23" (1/1) ... [2020-07-01 10:55:23,075 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 10:55:23" (1/1) ... [2020-07-01 10:55:23,077 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-01 10:55:23,077 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-01 10:55:23,077 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-01 10:55:23,077 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-01 10:55:23,078 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 10:55:23" (1/1) ... No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:5000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:5000 [2020-07-01 10:55:23,148 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-01 10:55:23,148 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-01 10:55:23,302 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-01 10:55:23,303 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-07-01 10:55:23,306 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.07 10:55:23 BoogieIcfgContainer [2020-07-01 10:55:23,307 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-01 10:55:23,307 INFO L113 PluginConnector]: ------------------------BlockEncodingV2---------------------------- [2020-07-01 10:55:23,307 INFO L271 PluginConnector]: Initializing BlockEncodingV2... [2020-07-01 10:55:23,310 INFO L275 PluginConnector]: BlockEncodingV2 initialized [2020-07-01 10:55:23,310 INFO L185 PluginConnector]: Executing the observer BlockEncodingObserver from plugin BlockEncodingV2 for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.07 10:55:23" (1/1) ... [2020-07-01 10:55:23,324 INFO L313 BlockEncoder]: Initial Icfg 7 locations, 9 edges [2020-07-01 10:55:23,325 INFO L258 BlockEncoder]: Using Remove infeasible edges [2020-07-01 10:55:23,326 INFO L263 BlockEncoder]: Using Maximize final states [2020-07-01 10:55:23,327 INFO L270 BlockEncoder]: Using Minimize states even if more edges are added than removed.=false [2020-07-01 10:55:23,327 INFO L276 BlockEncoder]: Using Minimize states using LBE with the strategy=SINGLE [2020-07-01 10:55:23,329 INFO L296 BlockEncoder]: Using Remove sink states [2020-07-01 10:55:23,330 INFO L171 BlockEncoder]: Using Apply optimizations until nothing changes=true [2020-07-01 10:55:23,330 INFO L179 BlockEncoder]: Using Rewrite not-equals [2020-07-01 10:55:23,344 INFO L185 BlockEncoder]: Using Use SBE [2020-07-01 10:55:23,359 INFO L200 BlockEncoder]: SBE split 2 edges [2020-07-01 10:55:23,364 INFO L70 emoveInfeasibleEdges]: Removed 1 edges and 0 locations because of local infeasibility [2020-07-01 10:55:23,365 INFO L71 MaximizeFinalStates]: 0 new accepting states [2020-07-01 10:55:23,377 INFO L100 BaseMinimizeStates]: Removed 4 edges and 2 locations by large block encoding [2020-07-01 10:55:23,379 INFO L70 RemoveSinkStates]: Removed 4 edges and 2 locations by removing sink states [2020-07-01 10:55:23,380 INFO L70 emoveInfeasibleEdges]: Removed 0 edges and 0 locations because of local infeasibility [2020-07-01 10:55:23,380 INFO L71 MaximizeFinalStates]: 0 new accepting states [2020-07-01 10:55:23,386 INFO L100 BaseMinimizeStates]: Removed 2 edges and 1 locations by large block encoding [2020-07-01 10:55:23,386 INFO L70 RemoveSinkStates]: Removed 0 edges and 0 locations by removing sink states [2020-07-01 10:55:23,386 INFO L70 emoveInfeasibleEdges]: Removed 0 edges and 0 locations because of local infeasibility [2020-07-01 10:55:23,387 INFO L71 MaximizeFinalStates]: 0 new accepting states [2020-07-01 10:55:23,388 INFO L100 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2020-07-01 10:55:23,388 INFO L70 RemoveSinkStates]: Removed 0 edges and 0 locations by removing sink states [2020-07-01 10:55:23,388 INFO L313 BlockEncoder]: Encoded RCFG 2 locations, 3 edges [2020-07-01 10:55:23,389 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 01.07 10:55:23 BasicIcfg [2020-07-01 10:55:23,389 INFO L132 PluginConnector]: ------------------------ END BlockEncodingV2---------------------------- [2020-07-01 10:55:23,390 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-01 10:55:23,391 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-01 10:55:23,394 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-01 10:55:23,394 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 01.07 10:55:22" (1/4) ... [2020-07-01 10:55:23,395 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@74102c5d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.07 10:55:23, skipping insertion in model container [2020-07-01 10:55:23,395 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 10:55:23" (2/4) ... [2020-07-01 10:55:23,396 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@74102c5d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.07 10:55:23, skipping insertion in model container [2020-07-01 10:55:23,396 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.07 10:55:23" (3/4) ... [2020-07-01 10:55:23,396 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@74102c5d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.07 10:55:23, skipping insertion in model container [2020-07-01 10:55:23,397 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 01.07 10:55:23" (4/4) ... [2020-07-01 10:55:23,398 INFO L109 eAbstractionObserver]: Analyzing ICFG theBenchmark.c_BEv2 [2020-07-01 10:55:23,409 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:ForwardPredicates Determinization: PREDICATE_ABSTRACTION [2020-07-01 10:55:23,416 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 0 error locations. [2020-07-01 10:55:23,430 INFO L251 AbstractCegarLoop]: Starting to check reachability of 0 error locations. [2020-07-01 10:55:23,453 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-01 10:55:23,454 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-01 10:55:23,454 INFO L377 AbstractCegarLoop]: Compute interpolants for ForwardPredicates [2020-07-01 10:55:23,454 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-01 10:55:23,454 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-01 10:55:23,454 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-01 10:55:23,455 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-01 10:55:23,455 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-01 10:55:23,469 INFO L276 IsEmpty]: Start isEmpty. Operand 2 states. [2020-07-01 10:55:23,474 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-01 10:55:23,477 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 2 states. [2020-07-01 10:55:23,529 INFO L268 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-07-01 10:55:23,529 INFO L271 CegarLoopResult]: At program point L22-2(lines 22 25) the Hoare annotation is: true [2020-07-01 10:55:23,538 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.07 10:55:23 BasicIcfg [2020-07-01 10:55:23,538 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-01 10:55:23,539 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-07-01 10:55:23,539 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-07-01 10:55:23,542 INFO L275 PluginConnector]: BuchiAutomizer initialized [2020-07-01 10:55:23,543 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-01 10:55:23,543 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 01.07 10:55:22" (1/5) ... [2020-07-01 10:55:23,544 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@3d7b82dc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 01.07 10:55:23, skipping insertion in model container [2020-07-01 10:55:23,544 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-01 10:55:23,544 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 10:55:23" (2/5) ... [2020-07-01 10:55:23,545 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@3d7b82dc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 01.07 10:55:23, skipping insertion in model container [2020-07-01 10:55:23,545 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-01 10:55:23,545 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.07 10:55:23" (3/5) ... [2020-07-01 10:55:23,545 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@3d7b82dc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 01.07 10:55:23, skipping insertion in model container [2020-07-01 10:55:23,545 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-01 10:55:23,546 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 01.07 10:55:23" (4/5) ... [2020-07-01 10:55:23,546 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@3d7b82dc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 01.07 10:55:23, skipping insertion in model container [2020-07-01 10:55:23,546 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-01 10:55:23,546 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.07 10:55:23" (5/5) ... [2020-07-01 10:55:23,548 INFO L371 chiAutomizerObserver]: Analyzing ICFG theBenchmark.c_BEv2 [2020-07-01 10:55:23,577 INFO L356 BuchiCegarLoop]: Interprodecural is true [2020-07-01 10:55:23,578 INFO L357 BuchiCegarLoop]: Hoare is true [2020-07-01 10:55:23,578 INFO L358 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-07-01 10:55:23,578 INFO L359 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-01 10:55:23,578 INFO L360 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-01 10:55:23,578 INFO L361 BuchiCegarLoop]: Difference is false [2020-07-01 10:55:23,578 INFO L362 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-01 10:55:23,579 INFO L365 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-07-01 10:55:23,582 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 2 states. [2020-07-01 10:55:23,599 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2020-07-01 10:55:23,600 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-07-01 10:55:23,600 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-07-01 10:55:23,605 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1] [2020-07-01 10:55:23,606 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1] [2020-07-01 10:55:23,606 INFO L424 BuchiCegarLoop]: ======== Iteration 1============ [2020-07-01 10:55:23,606 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 2 states. [2020-07-01 10:55:23,606 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2020-07-01 10:55:23,607 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-07-01 10:55:23,607 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-07-01 10:55:23,607 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1] [2020-07-01 10:55:23,607 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1] [2020-07-01 10:55:23,612 INFO L794 eck$LassoCheckResult]: Stem: 3#ULTIMATE.startENTRYtrue [41] ULTIMATE.startENTRY-->L22-2: Formula: (= v_ULTIMATE.start_main_~a~0_9 v_ULTIMATE.start_main_~b~0_9) InVars {} OutVars{ULTIMATE.start_main_#t~nondet0=|v_ULTIMATE.start_main_#t~nondet0_6|, ULTIMATE.start_main_#t~nondet1=|v_ULTIMATE.start_main_#t~nondet1_6|, ULTIMATE.start_main_~a~0=v_ULTIMATE.start_main_~a~0_9, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_6|, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_6|, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_6|, ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_9, ULTIMATE.start_main_~b~0=v_ULTIMATE.start_main_~b~0_9, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_9} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet0, ULTIMATE.start_main_#t~nondet1, ULTIMATE.start_main_~a~0, ULTIMATE.start_main_#t~nondet2, ULTIMATE.start_main_#res, ULTIMATE.start_main_#t~nondet3, ULTIMATE.start_main_~y~0, ULTIMATE.start_main_~b~0, ULTIMATE.start_main_~x~0] 4#L22-2true [2020-07-01 10:55:23,612 INFO L796 eck$LassoCheckResult]: Loop: 4#L22-2true [37] L22-2-->L22-2: Formula: (and (<= 0 v_ULTIMATE.start_main_~y~0_8) (= v_ULTIMATE.start_main_~x~0_7 (+ v_ULTIMATE.start_main_~a~0_8 v_ULTIMATE.start_main_~x~0_8 (* v_ULTIMATE.start_main_~b~0_8 (- 1)) (- 1))) (= v_ULTIMATE.start_main_~y~0_7 (+ (* v_ULTIMATE.start_main_~a~0_8 (- 1)) v_ULTIMATE.start_main_~y~0_8 v_ULTIMATE.start_main_~b~0_8 (- 1)))) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_8, ULTIMATE.start_main_~a~0=v_ULTIMATE.start_main_~a~0_8, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_8, ULTIMATE.start_main_~b~0=v_ULTIMATE.start_main_~b~0_8} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_7, ULTIMATE.start_main_~a~0=v_ULTIMATE.start_main_~a~0_8, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_7, ULTIMATE.start_main_~b~0=v_ULTIMATE.start_main_~b~0_8} AuxVars[] AssignedVars[ULTIMATE.start_main_~y~0, ULTIMATE.start_main_~x~0] 4#L22-2true [2020-07-01 10:55:23,619 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 10:55:23,619 INFO L82 PathProgramCache]: Analyzing trace with hash 72, now seen corresponding path program 1 times [2020-07-01 10:55:23,628 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 10:55:23,629 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1990157561] [2020-07-01 10:55:23,629 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 10:55:23,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 10:55:23,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 10:55:23,703 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 10:55:23,704 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 10:55:23,704 INFO L82 PathProgramCache]: Analyzing trace with hash 68, now seen corresponding path program 1 times [2020-07-01 10:55:23,704 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 10:55:23,705 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1799945112] [2020-07-01 10:55:23,705 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 10:55:23,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 10:55:23,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 10:55:23,722 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 10:55:23,724 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 10:55:23,724 INFO L82 PathProgramCache]: Analyzing trace with hash 2269, now seen corresponding path program 1 times [2020-07-01 10:55:23,724 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 10:55:23,725 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [227768159] [2020-07-01 10:55:23,725 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 10:55:23,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 10:55:23,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 10:55:23,740 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 10:55:23,785 INFO L210 LassoAnalysis]: Preferences: [2020-07-01 10:55:23,786 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-07-01 10:55:23,786 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-07-01 10:55:23,786 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-07-01 10:55:23,787 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2020-07-01 10:55:23,787 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 10:55:23,787 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-07-01 10:55:23,787 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-07-01 10:55:23,787 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration1_Loop [2020-07-01 10:55:23,788 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-07-01 10:55:23,788 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-07-01 10:55:23,808 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 10:55:23,818 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 10:55:23,826 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 10:55:23,917 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-07-01 10:55:23,918 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 10:55:23,925 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 10:55:23,925 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 10:55:23,936 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 10:55:23,936 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_1=0} Honda state: {v_rep~unnamed0~0~false_1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 10:55:23,969 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 10:55:23,969 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 10:55:23,974 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 10:55:23,974 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_1=1} Honda state: {v_rep~unnamed0~0~true_1=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 10:55:24,007 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 10:55:24,007 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 10:55:24,048 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-07-01 10:55:24,048 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 10:55:24,403 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 10:55:24,403 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~y~0=0, ULTIMATE.start_main_~a~0=-2, ULTIMATE.start_main_~b~0=1, ULTIMATE.start_main_~x~0=0} Honda state: {ULTIMATE.start_main_~y~0=0, ULTIMATE.start_main_~a~0=-2, ULTIMATE.start_main_~b~0=1, ULTIMATE.start_main_~x~0=0} Generalized eigenvectors: [{ULTIMATE.start_main_~y~0=0, ULTIMATE.start_main_~a~0=-1, ULTIMATE.start_main_~b~0=-1, ULTIMATE.start_main_~x~0=0}, {ULTIMATE.start_main_~y~0=0, ULTIMATE.start_main_~a~0=7, ULTIMATE.start_main_~b~0=7, ULTIMATE.start_main_~x~0=0}, {ULTIMATE.start_main_~y~0=2, ULTIMATE.start_main_~a~0=-6, ULTIMATE.start_main_~b~0=-6, ULTIMATE.start_main_~x~0=-4}] Lambdas: [8, 1, 1] Nus: [1, 0] [2020-07-01 10:55:24,440 INFO L210 LassoAnalysis]: Preferences: [2020-07-01 10:55:24,440 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-07-01 10:55:24,440 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-07-01 10:55:24,441 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-07-01 10:55:24,441 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2020-07-01 10:55:24,441 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 10:55:24,441 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-07-01 10:55:24,441 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-07-01 10:55:24,441 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration1_Lasso [2020-07-01 10:55:24,441 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-07-01 10:55:24,441 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-07-01 10:55:24,444 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 10:55:24,448 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 10:55:24,451 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 10:55:24,454 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 10:55:24,457 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 10:55:24,460 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 10:55:24,465 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 10:55:24,475 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 10:55:24,581 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-07-01 10:55:24,581 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 10:55:24,586 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 10:55:24,586 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 10:55:24,590 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 10:55:24,590 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#res=0} Honda state: {ULTIMATE.start_main_#res=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 10:55:24,624 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 10:55:24,624 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 10:55:24,629 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 10:55:24,629 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_2=0} Honda state: {v_rep~unnamed0~0~false_2=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 10:55:24,662 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 10:55:24,662 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 10:55:24,666 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 10:55:24,666 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet0=0} Honda state: {ULTIMATE.start_main_#t~nondet0=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 10:55:24,699 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 10:55:24,699 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 10:55:24,704 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 10:55:24,704 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet2=0} Honda state: {ULTIMATE.start_main_#t~nondet2=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 10:55:24,736 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 10:55:24,736 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 10:55:24,740 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 10:55:24,740 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet1=0} Honda state: {ULTIMATE.start_main_#t~nondet1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 10:55:24,772 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 10:55:24,772 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 10:55:24,776 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 10:55:24,776 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet3=0} Honda state: {ULTIMATE.start_main_#t~nondet3=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 10:55:24,809 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 10:55:24,809 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 10:55:24,814 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 10:55:24,814 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_2=1} Honda state: {v_rep~unnamed0~0~true_2=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 10:55:24,846 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 10:55:24,846 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 10:55:24,887 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-07-01 10:55:24,887 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 10:55:25,722 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-07-01 10:55:25,726 INFO L210 LassoAnalysis]: Preferences: [2020-07-01 10:55:25,726 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-07-01 10:55:25,727 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-07-01 10:55:25,727 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-07-01 10:55:25,727 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-07-01 10:55:25,727 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 10:55:25,727 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-07-01 10:55:25,727 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-07-01 10:55:25,727 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration1_Lasso [2020-07-01 10:55:25,728 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-07-01 10:55:25,728 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-07-01 10:55:25,730 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 10:55:25,734 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 10:55:25,736 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 10:55:25,739 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 10:55:25,741 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 10:55:25,744 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 10:55:25,747 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 10:55:25,751 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 10:55:25,869 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-07-01 10:55:25,875 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 10:55:25,880 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-07-01 10:55:25,883 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 10:55:25,883 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 10:55:25,883 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 10:55:25,883 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 10:55:25,890 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-07-01 10:55:25,890 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-07-01 10:55:25,897 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 16 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 16 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 10:55:25,932 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-07-01 10:55:25,934 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 10:55:25,934 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-01 10:55:25,935 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 10:55:25,935 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 10:55:25,935 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 10:55:25,936 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-07-01 10:55:25,936 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-01 10:55:25,938 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 17 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 17 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 10:55:25,971 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-07-01 10:55:25,974 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 10:55:25,974 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-01 10:55:25,974 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 10:55:25,974 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 10:55:25,974 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 10:55:25,975 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-07-01 10:55:25,975 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-01 10:55:25,977 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 18 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 18 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 10:55:26,011 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-07-01 10:55:26,013 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 10:55:26,013 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-01 10:55:26,013 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 10:55:26,014 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 10:55:26,014 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 10:55:26,014 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-07-01 10:55:26,015 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-01 10:55:26,017 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 19 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 19 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 10:55:26,051 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-07-01 10:55:26,054 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 10:55:26,054 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-01 10:55:26,054 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 10:55:26,054 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 10:55:26,054 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 10:55:26,056 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-07-01 10:55:26,056 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-01 10:55:26,058 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 20 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 20 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 10:55:26,093 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-07-01 10:55:26,095 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 10:55:26,095 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-01 10:55:26,096 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 10:55:26,096 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 10:55:26,096 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 10:55:26,097 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-07-01 10:55:26,097 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-01 10:55:26,099 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 21 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 21 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 10:55:26,133 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-07-01 10:55:26,135 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 10:55:26,136 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 10:55:26,136 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 10:55:26,136 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 10:55:26,139 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-07-01 10:55:26,140 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-07-01 10:55:26,145 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 22 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 22 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 10:55:26,179 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-07-01 10:55:26,181 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 10:55:26,182 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 10:55:26,182 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 10:55:26,182 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 10:55:26,189 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-07-01 10:55:26,190 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-07-01 10:55:26,202 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-07-01 10:55:26,220 INFO L443 ModelExtractionUtils]: Simplification made 7 calls to the SMT solver. [2020-07-01 10:55:26,220 INFO L444 ModelExtractionUtils]: 9 out of 16 variables were initially zero. Simplification set additionally 2 variables to zero. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 23 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 23 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 10:55:26,226 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-07-01 10:55:26,231 INFO L438 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2020-07-01 10:55:26,231 INFO L510 LassoAnalysis]: Proved termination. [2020-07-01 10:55:26,232 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~y~0) = 2*ULTIMATE.start_main_~y~0 + 1 Supporting invariants [-1*ULTIMATE.start_main_~b~0 + 1*ULTIMATE.start_main_~a~0 >= 0] [2020-07-01 10:55:26,269 INFO L297 tatePredicateManager]: 0 out of 1 supporting invariants were superfluous and have been removed [2020-07-01 10:55:26,315 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 10:55:26,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 10:55:26,328 WARN L262 TraceCheckSpWp]: Trace formula consists of 4 conjuncts, 3 conjunts are in the unsatisfiable core [2020-07-01 10:55:26,329 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 10:55:26,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 10:55:26,346 WARN L262 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 5 conjunts are in the unsatisfiable core [2020-07-01 10:55:26,346 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 10:55:26,347 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-01 10:55:26,374 INFO L98 LoopCannibalizer]: 2 predicates before loop cannibalization 2 predicates after loop cannibalization [2020-07-01 10:55:26,380 INFO L152 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2020-07-01 10:55:26,381 INFO L69 BuchiDifferenceNCSB]: Start buchiDifferenceNCSB. First operand 2 states. Second operand 2 states. [2020-07-01 10:55:26,450 INFO L73 BuchiDifferenceNCSB]: Finished buchiDifferenceNCSB. First operand 2 states.. Second operand 2 states. Result 6 states and 11 transitions. Complement of second has 4 states. [2020-07-01 10:55:26,451 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2020-07-01 10:55:26,453 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2020-07-01 10:55:26,454 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 8 transitions. [2020-07-01 10:55:26,455 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 8 transitions. Stem has 1 letters. Loop has 1 letters. [2020-07-01 10:55:26,457 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 10:55:26,457 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 8 transitions. Stem has 2 letters. Loop has 1 letters. [2020-07-01 10:55:26,457 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 10:55:26,457 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 8 transitions. Stem has 1 letters. Loop has 2 letters. [2020-07-01 10:55:26,458 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 10:55:26,464 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 6 states and 11 transitions. [2020-07-01 10:55:26,465 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2020-07-01 10:55:26,469 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 6 states to 6 states and 11 transitions. [2020-07-01 10:55:26,471 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 3 [2020-07-01 10:55:26,471 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 4 [2020-07-01 10:55:26,472 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 11 transitions. [2020-07-01 10:55:26,472 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-07-01 10:55:26,472 INFO L688 BuchiCegarLoop]: Abstraction has 6 states and 11 transitions. [2020-07-01 10:55:26,490 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6 states and 11 transitions. [2020-07-01 10:55:26,499 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6 to 5. [2020-07-01 10:55:26,500 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2020-07-01 10:55:26,500 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 10 transitions. [2020-07-01 10:55:26,501 INFO L711 BuchiCegarLoop]: Abstraction has 5 states and 10 transitions. [2020-07-01 10:55:26,502 INFO L591 BuchiCegarLoop]: Abstraction has 5 states and 10 transitions. [2020-07-01 10:55:26,502 INFO L424 BuchiCegarLoop]: ======== Iteration 2============ [2020-07-01 10:55:26,502 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 5 states and 10 transitions. [2020-07-01 10:55:26,502 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2020-07-01 10:55:26,503 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-07-01 10:55:26,503 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-07-01 10:55:26,503 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2020-07-01 10:55:26,503 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1] [2020-07-01 10:55:26,504 INFO L794 eck$LassoCheckResult]: Stem: 46#ULTIMATE.startENTRY [41] ULTIMATE.startENTRY-->L22-2: Formula: (= v_ULTIMATE.start_main_~a~0_9 v_ULTIMATE.start_main_~b~0_9) InVars {} OutVars{ULTIMATE.start_main_#t~nondet0=|v_ULTIMATE.start_main_#t~nondet0_6|, ULTIMATE.start_main_#t~nondet1=|v_ULTIMATE.start_main_#t~nondet1_6|, ULTIMATE.start_main_~a~0=v_ULTIMATE.start_main_~a~0_9, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_6|, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_6|, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_6|, ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_9, ULTIMATE.start_main_~b~0=v_ULTIMATE.start_main_~b~0_9, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_9} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet0, ULTIMATE.start_main_#t~nondet1, ULTIMATE.start_main_~a~0, ULTIMATE.start_main_#t~nondet2, ULTIMATE.start_main_#res, ULTIMATE.start_main_#t~nondet3, ULTIMATE.start_main_~y~0, ULTIMATE.start_main_~b~0, ULTIMATE.start_main_~x~0] 47#L22-2 [38] L22-2-->L22-2: Formula: (and (= v_ULTIMATE.start_main_~x~0_7 (+ v_ULTIMATE.start_main_~a~0_8 v_ULTIMATE.start_main_~x~0_8 (* v_ULTIMATE.start_main_~b~0_8 (- 1)) (- 1))) (= v_ULTIMATE.start_main_~y~0_7 (+ (* v_ULTIMATE.start_main_~a~0_8 (- 1)) v_ULTIMATE.start_main_~y~0_8 v_ULTIMATE.start_main_~b~0_8 (- 1))) (<= 0 v_ULTIMATE.start_main_~x~0_8)) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_8, ULTIMATE.start_main_~a~0=v_ULTIMATE.start_main_~a~0_8, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_8, ULTIMATE.start_main_~b~0=v_ULTIMATE.start_main_~b~0_8} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_7, ULTIMATE.start_main_~a~0=v_ULTIMATE.start_main_~a~0_8, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_7, ULTIMATE.start_main_~b~0=v_ULTIMATE.start_main_~b~0_8} AuxVars[] AssignedVars[ULTIMATE.start_main_~y~0, ULTIMATE.start_main_~x~0] 48#L22-2 [2020-07-01 10:55:26,504 INFO L796 eck$LassoCheckResult]: Loop: 48#L22-2 [38] L22-2-->L22-2: Formula: (and (= v_ULTIMATE.start_main_~x~0_7 (+ v_ULTIMATE.start_main_~a~0_8 v_ULTIMATE.start_main_~x~0_8 (* v_ULTIMATE.start_main_~b~0_8 (- 1)) (- 1))) (= v_ULTIMATE.start_main_~y~0_7 (+ (* v_ULTIMATE.start_main_~a~0_8 (- 1)) v_ULTIMATE.start_main_~y~0_8 v_ULTIMATE.start_main_~b~0_8 (- 1))) (<= 0 v_ULTIMATE.start_main_~x~0_8)) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_8, ULTIMATE.start_main_~a~0=v_ULTIMATE.start_main_~a~0_8, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_8, ULTIMATE.start_main_~b~0=v_ULTIMATE.start_main_~b~0_8} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_7, ULTIMATE.start_main_~a~0=v_ULTIMATE.start_main_~a~0_8, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_7, ULTIMATE.start_main_~b~0=v_ULTIMATE.start_main_~b~0_8} AuxVars[] AssignedVars[ULTIMATE.start_main_~y~0, ULTIMATE.start_main_~x~0] 48#L22-2 [2020-07-01 10:55:26,504 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 10:55:26,504 INFO L82 PathProgramCache]: Analyzing trace with hash 2270, now seen corresponding path program 1 times [2020-07-01 10:55:26,504 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 10:55:26,505 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1734709791] [2020-07-01 10:55:26,505 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 10:55:26,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 10:55:26,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 10:55:26,516 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 10:55:26,517 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 10:55:26,517 INFO L82 PathProgramCache]: Analyzing trace with hash 69, now seen corresponding path program 1 times [2020-07-01 10:55:26,517 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 10:55:26,517 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [773898913] [2020-07-01 10:55:26,517 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 10:55:26,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 10:55:26,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 10:55:26,527 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 10:55:26,527 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 10:55:26,528 INFO L82 PathProgramCache]: Analyzing trace with hash 70408, now seen corresponding path program 2 times [2020-07-01 10:55:26,528 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 10:55:26,528 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [457830311] [2020-07-01 10:55:26,528 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 10:55:26,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 10:55:26,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 10:55:26,541 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 10:55:26,558 INFO L210 LassoAnalysis]: Preferences: [2020-07-01 10:55:26,558 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-07-01 10:55:26,558 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-07-01 10:55:26,558 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-07-01 10:55:26,558 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2020-07-01 10:55:26,559 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 10:55:26,559 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-07-01 10:55:26,559 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-07-01 10:55:26,559 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration2_Loop [2020-07-01 10:55:26,559 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-07-01 10:55:26,559 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-07-01 10:55:26,561 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 10:55:26,565 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 10:55:26,569 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 10:55:26,629 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-07-01 10:55:26,629 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 24 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 24 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 10:55:26,634 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 10:55:26,634 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 10:55:26,639 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 10:55:26,640 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_4=0} Honda state: {v_rep~unnamed0~0~false_4=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 25 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 25 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 10:55:26,672 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 10:55:26,672 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 10:55:26,677 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 10:55:26,677 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_4=1} Honda state: {v_rep~unnamed0~0~true_4=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 26 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 26 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 10:55:26,711 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 10:55:26,711 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 27 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 27 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 10:55:26,753 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-07-01 10:55:26,753 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 10:55:27,246 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 10:55:27,247 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~y~0=0, ULTIMATE.start_main_~a~0=3, ULTIMATE.start_main_~b~0=-8, ULTIMATE.start_main_~x~0=0} Honda state: {ULTIMATE.start_main_~y~0=0, ULTIMATE.start_main_~a~0=3, ULTIMATE.start_main_~b~0=-8, ULTIMATE.start_main_~x~0=0} Generalized eigenvectors: [{ULTIMATE.start_main_~y~0=-4, ULTIMATE.start_main_~a~0=-8, ULTIMATE.start_main_~b~0=-8, ULTIMATE.start_main_~x~0=0}, {ULTIMATE.start_main_~y~0=-4, ULTIMATE.start_main_~a~0=4, ULTIMATE.start_main_~b~0=4, ULTIMATE.start_main_~x~0=5}, {ULTIMATE.start_main_~y~0=-4, ULTIMATE.start_main_~a~0=4, ULTIMATE.start_main_~b~0=4, ULTIMATE.start_main_~x~0=5}] Lambdas: [1, 0, 1] Nus: [0, 1] [2020-07-01 10:55:27,305 INFO L210 LassoAnalysis]: Preferences: [2020-07-01 10:55:27,305 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-07-01 10:55:27,306 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-07-01 10:55:27,306 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-07-01 10:55:27,306 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2020-07-01 10:55:27,306 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 10:55:27,306 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-07-01 10:55:27,306 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-07-01 10:55:27,306 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration2_Lasso [2020-07-01 10:55:27,306 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-07-01 10:55:27,307 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-07-01 10:55:27,308 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 10:55:27,312 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 10:55:27,318 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 10:55:27,321 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 10:55:27,325 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 10:55:27,340 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 10:55:27,343 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 10:55:27,347 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 10:55:27,420 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-07-01 10:55:27,420 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 28 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 28 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 10:55:27,431 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 10:55:27,431 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 10:55:27,435 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 10:55:27,436 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_5=0} Honda state: {v_rep~unnamed0~0~false_5=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 29 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 29 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 10:55:27,468 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 10:55:27,468 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 10:55:27,471 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 10:55:27,472 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet2=0} Honda state: {ULTIMATE.start_main_#t~nondet2=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 30 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 30 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 10:55:27,503 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 10:55:27,503 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 10:55:27,508 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 10:55:27,508 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_5=1} Honda state: {v_rep~unnamed0~0~true_5=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 31 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 31 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 10:55:27,539 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 10:55:27,539 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 10:55:27,543 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 10:55:27,543 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet0=0} Honda state: {ULTIMATE.start_main_#t~nondet0=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 32 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 32 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 10:55:27,574 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 10:55:27,574 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 33 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 33 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 10:55:27,614 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-07-01 10:55:27,614 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 10:55:28,864 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-07-01 10:55:28,866 INFO L210 LassoAnalysis]: Preferences: [2020-07-01 10:55:28,867 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-07-01 10:55:28,867 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-07-01 10:55:28,867 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-07-01 10:55:28,867 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-07-01 10:55:28,867 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 10:55:28,867 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-07-01 10:55:28,867 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-07-01 10:55:28,867 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration2_Lasso [2020-07-01 10:55:28,868 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-07-01 10:55:28,868 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-07-01 10:55:28,870 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 10:55:28,882 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 10:55:28,885 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 10:55:28,888 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 10:55:28,890 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 10:55:28,893 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 10:55:28,896 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 10:55:28,898 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 10:55:28,975 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-07-01 10:55:28,975 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 34 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 34 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 10:55:28,978 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-07-01 10:55:28,980 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 10:55:28,981 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 10:55:28,981 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 10:55:28,981 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 10:55:28,985 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-07-01 10:55:28,985 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-07-01 10:55:28,995 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-07-01 10:55:29,015 INFO L443 ModelExtractionUtils]: Simplification made 9 calls to the SMT solver. [2020-07-01 10:55:29,015 INFO L444 ModelExtractionUtils]: 4 out of 16 variables were initially zero. Simplification set additionally 7 variables to zero. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 35 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 35 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 10:55:29,018 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-07-01 10:55:29,022 INFO L438 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2020-07-01 10:55:29,022 INFO L510 LassoAnalysis]: Proved termination. [2020-07-01 10:55:29,022 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0) = 2*ULTIMATE.start_main_~x~0 + 1 Supporting invariants [-1*ULTIMATE.start_main_~a~0 + 1*ULTIMATE.start_main_~b~0 >= 0] [2020-07-01 10:55:29,055 INFO L297 tatePredicateManager]: 0 out of 1 supporting invariants were superfluous and have been removed [2020-07-01 10:55:29,085 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 10:55:29,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 10:55:29,090 INFO L264 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 3 conjunts are in the unsatisfiable core [2020-07-01 10:55:29,091 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 10:55:29,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 10:55:29,104 WARN L262 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 5 conjunts are in the unsatisfiable core [2020-07-01 10:55:29,104 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 10:55:29,105 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-01 10:55:29,116 INFO L98 LoopCannibalizer]: 2 predicates before loop cannibalization 2 predicates after loop cannibalization [2020-07-01 10:55:29,117 INFO L152 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.2 stem predicates 2 loop predicates [2020-07-01 10:55:29,117 INFO L69 BuchiDifferenceNCSB]: Start buchiDifferenceNCSB. First operand 5 states and 10 transitions. cyclomatic complexity: 7 Second operand 3 states. [2020-07-01 10:55:29,157 INFO L73 BuchiDifferenceNCSB]: Finished buchiDifferenceNCSB. First operand 5 states and 10 transitions. cyclomatic complexity: 7. Second operand 3 states. Result 8 states and 16 transitions. Complement of second has 5 states. [2020-07-01 10:55:29,157 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 2 stem states 1 non-accepting loop states 1 accepting loop states [2020-07-01 10:55:29,158 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-07-01 10:55:29,158 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 8 transitions. [2020-07-01 10:55:29,158 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 8 transitions. Stem has 2 letters. Loop has 1 letters. [2020-07-01 10:55:29,159 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 10:55:29,159 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 8 transitions. Stem has 3 letters. Loop has 1 letters. [2020-07-01 10:55:29,159 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 10:55:29,159 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 8 transitions. Stem has 2 letters. Loop has 2 letters. [2020-07-01 10:55:29,159 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 10:55:29,160 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 8 states and 16 transitions. [2020-07-01 10:55:29,161 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-07-01 10:55:29,161 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 8 states to 0 states and 0 transitions. [2020-07-01 10:55:29,161 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2020-07-01 10:55:29,162 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2020-07-01 10:55:29,162 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2020-07-01 10:55:29,162 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-07-01 10:55:29,162 INFO L688 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-01 10:55:29,162 INFO L711 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-01 10:55:29,162 INFO L591 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-01 10:55:29,162 INFO L424 BuchiCegarLoop]: ======== Iteration 3============ [2020-07-01 10:55:29,162 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2020-07-01 10:55:29,163 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-07-01 10:55:29,170 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2020-07-01 10:55:29,177 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 01.07 10:55:29 BasicIcfg [2020-07-01 10:55:29,178 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-07-01 10:55:29,180 INFO L168 Benchmark]: Toolchain (without parser) took 6462.02 ms. Allocated memory was 514.9 MB in the beginning and 597.7 MB in the end (delta: 82.8 MB). Free memory was 438.5 MB in the beginning and 560.3 MB in the end (delta: -121.8 MB). Peak memory consumption was 128.5 MB. Max. memory is 50.3 GB. [2020-07-01 10:55:29,181 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 514.9 MB. Free memory is still 458.5 MB. There was no memory consumed. Max. memory is 50.3 GB. [2020-07-01 10:55:29,181 INFO L168 Benchmark]: CACSL2BoogieTranslator took 300.14 ms. Allocated memory was 514.9 MB in the beginning and 562.6 MB in the end (delta: 47.7 MB). Free memory was 437.9 MB in the beginning and 530.0 MB in the end (delta: -92.2 MB). Peak memory consumption was 27.8 MB. Max. memory is 50.3 GB. [2020-07-01 10:55:29,182 INFO L168 Benchmark]: Boogie Procedure Inliner took 36.64 ms. Allocated memory is still 562.6 MB. Free memory was 530.0 MB in the beginning and 528.6 MB in the end (delta: 1.5 MB). Peak memory consumption was 1.5 MB. Max. memory is 50.3 GB. [2020-07-01 10:55:29,182 INFO L168 Benchmark]: Boogie Preprocessor took 20.64 ms. Allocated memory is still 562.6 MB. Free memory was 528.6 MB in the beginning and 527.2 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 50.3 GB. [2020-07-01 10:55:29,183 INFO L168 Benchmark]: RCFGBuilder took 229.68 ms. Allocated memory is still 562.6 MB. Free memory was 527.2 MB in the beginning and 514.8 MB in the end (delta: 12.5 MB). Peak memory consumption was 12.5 MB. Max. memory is 50.3 GB. [2020-07-01 10:55:29,183 INFO L168 Benchmark]: BlockEncodingV2 took 82.13 ms. Allocated memory is still 562.6 MB. Free memory was 514.8 MB in the beginning and 509.4 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 50.3 GB. [2020-07-01 10:55:29,184 INFO L168 Benchmark]: TraceAbstraction took 147.67 ms. Allocated memory is still 562.6 MB. Free memory was 508.7 MB in the beginning and 500.5 MB in the end (delta: 8.2 MB). Peak memory consumption was 8.2 MB. Max. memory is 50.3 GB. [2020-07-01 10:55:29,185 INFO L168 Benchmark]: BuchiAutomizer took 5639.05 ms. Allocated memory was 562.6 MB in the beginning and 597.7 MB in the end (delta: 35.1 MB). Free memory was 499.8 MB in the beginning and 560.3 MB in the end (delta: -60.5 MB). Peak memory consumption was 142.1 MB. Max. memory is 50.3 GB. [2020-07-01 10:55:29,188 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.blockencoding: - StatisticsResult: Initial Icfg 7 locations, 9 edges - StatisticsResult: Encoded RCFG 2 locations, 3 edges * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 514.9 MB. Free memory is still 458.5 MB. There was no memory consumed. Max. memory is 50.3 GB. * CACSL2BoogieTranslator took 300.14 ms. Allocated memory was 514.9 MB in the beginning and 562.6 MB in the end (delta: 47.7 MB). Free memory was 437.9 MB in the beginning and 530.0 MB in the end (delta: -92.2 MB). Peak memory consumption was 27.8 MB. Max. memory is 50.3 GB. * Boogie Procedure Inliner took 36.64 ms. Allocated memory is still 562.6 MB. Free memory was 530.0 MB in the beginning and 528.6 MB in the end (delta: 1.5 MB). Peak memory consumption was 1.5 MB. Max. memory is 50.3 GB. * Boogie Preprocessor took 20.64 ms. Allocated memory is still 562.6 MB. Free memory was 528.6 MB in the beginning and 527.2 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 50.3 GB. * RCFGBuilder took 229.68 ms. Allocated memory is still 562.6 MB. Free memory was 527.2 MB in the beginning and 514.8 MB in the end (delta: 12.5 MB). Peak memory consumption was 12.5 MB. Max. memory is 50.3 GB. * BlockEncodingV2 took 82.13 ms. Allocated memory is still 562.6 MB. Free memory was 514.8 MB in the beginning and 509.4 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 50.3 GB. * TraceAbstraction took 147.67 ms. Allocated memory is still 562.6 MB. Free memory was 508.7 MB in the beginning and 500.5 MB in the end (delta: 8.2 MB). Peak memory consumption was 8.2 MB. Max. memory is 50.3 GB. * BuchiAutomizer took 5639.05 ms. Allocated memory was 562.6 MB in the beginning and 597.7 MB in the end (delta: 35.1 MB). Free memory was 499.8 MB in the beginning and 560.3 MB in the end (delta: -60.5 MB). Peak memory consumption was 142.1 MB. Max. memory is 50.3 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - AllSpecificationsHoldResult: All specifications hold We were not able to verify any specifiation because the program does not contain any specification. - InvariantResult [Line: 22]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 2 locations, 0 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 0.0s, OverallIterations: 0, TraceHistogramMax: 0, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 1 LocationsWithAnnotation, 1 PreInvPairs, 1 NumberOfFragments, 1 HoareAnnotationTreeSize, 1 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 1 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: No data available, ReuseStatistics: No data available - StatisticsResult: Constructed decomposition of program Your program was decomposed into 2 terminating modules (0 trivial, 0 deterministic, 2 nondeterministic). One nondeterministic module has affine ranking function 2 * y + 1 and consists of 3 locations. One nondeterministic module has affine ranking function 2 * x + 1 and consists of 4 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 5.6s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 5.2s. Construction of modules took 0.0s. Büchi inclusion checks took 0.2s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 1. Automata minimization 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 1 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 5 states and ocurred in iteration 1. Nontrivial modules had stage [2, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 2 SDtfs, 8 SDslu, 0 SDs, 0 SdLazy, 10 SolverSat, 10 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT0 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso2 LassoPreprocessingBenchmarks: Lassos: inital26 mio100 ax147 hnf94 lsp66 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq184 hnf94 smp100 dnf100 smp100 tf101 neg100 sie100 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 20ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 15 LassoNonterminationAnalysisSatUnbounded: 2 LassoNonterminationAnalysisUnsat: 2 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 3.2s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! !SESSION 2020-07-01 10:55:19.418 ----------------------------------------------- eclipse.buildId=unknown java.version=1.8.0_242 java.vendor=Oracle Corporation BootLoader constants: OS=linux, ARCH=x86_64, WS=gtk, NL=en_US Framework arguments: -tc ./../AutomizerAndBuchiAutomizerCInlineWithBlockEncoding.xml -s ./../termcomp2017.epf -i /export/starexec/sandbox2/benchmark/theBenchmark.c Command-line arguments: -os linux -ws gtk -arch x86_64 -consoleLog -data @user.home/.ultimate -tc ./../AutomizerAndBuchiAutomizerCInlineWithBlockEncoding.xml -s ./../termcomp2017.epf -data /export/starexec/sandbox2/tmp/BenchExec_run_8Op7GL/tmp -i /export/starexec/sandbox2/benchmark/theBenchmark.c !ENTRY org.eclipse.core.resources 2 10035 2020-07-01 10:55:29.623 !MESSAGE The workspace will exit with unsaved changes in this session. Received shutdown request... Ultimate: GTK+ Version Check